WO2020011502A1 - Dispositif distributeur rotatif doté d'un agencement d'étanchéité - Google Patents

Dispositif distributeur rotatif doté d'un agencement d'étanchéité Download PDF

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Publication number
WO2020011502A1
WO2020011502A1 PCT/EP2019/066133 EP2019066133W WO2020011502A1 WO 2020011502 A1 WO2020011502 A1 WO 2020011502A1 EP 2019066133 W EP2019066133 W EP 2019066133W WO 2020011502 A1 WO2020011502 A1 WO 2020011502A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
sealing element
rotary distributor
arrangement
distributor arrangement
Prior art date
Application number
PCT/EP2019/066133
Other languages
German (de)
English (en)
Inventor
Michael Beisel
Original Assignee
Khs Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Khs Gmbh filed Critical Khs Gmbh
Publication of WO2020011502A1 publication Critical patent/WO2020011502A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F16L39/04—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies allowing adjustment or movement

Definitions

  • the invention relates to a rotary distributor arrangement for passing at least one medium according to the preamble of patent claim 1.
  • Rotary distributor arrangements of this type are used, for example, in containers,
  • Treatment and filling machines and the like For use and are known in principle with regard to their structure and mode of operation.
  • the line through which the medium is supplied is arranged in a stationary manner, while the container into which the medium is to be filled rotates or is in rotation.
  • a rotary distributor arrangement which is used in particular to transfer liquid or gaseous media from a fixed part of the system to a rotating part of the system.
  • seals are conventionally referred to as grooved rings.
  • the seals have the disadvantage on the one hand that they are not suitable for high circumferential speeds, and on the other hand increased wear can be determined when high pressures on the seals
  • Rotary distributor arrangement Increased wear of the seals inevitably means that the seals have to be replaced more frequently and the system has to be serviced more often. The result is a frequent shutdown of the system.
  • Rotary distributor arrangements with layered rings are also known. The seals are first inserted into the layered rings before the rings are then connected. After the rings have been connected, a component is obtained which corresponds to the outside of the rotary distributor arrangement.
  • Such rotary distributor arrangements have the advantage that seals made of a rigid material such as PTFE can be used, the assembly of the component and the production of the rings are extremely complex. This is due in particular to the fact that many fits with precise tolerances have to be introduced into the rings.
  • Vessel filling machines described comprising a fixed part and a rotating part, wherein a plurality of leads are connected to the fixed part and a plurality of leads are connected to the rotating part, each lead being connected to its lead through channels in the interior of the rotating part.
  • a plurality of ring grooves are formed in the fixed part, each receiving a seal.
  • the fluids flowing through the rotary distributor are separated from one another by the seals.
  • the seals each comprise two separate, elastic sealing rings which are fastened at a distance from one another in a common housing.
  • the sealing rings are preferably flat Teflon rings with a curved sealing lip, the sealing lip bearing with prestress on the outer surface of the rotating part. Between the two sealing rings there is a solid support ring which keeps them at a distance and has two bores which are offset by 180 degrees over the circumference in order to be able to introduce a cleaning liquid for cleaning the interior of the housing.
  • Sealing rings have a higher wear.
  • the installation space for the sealing rings and for the support ring is predetermined by the dimensions of the housing. The present invention is therefore based on the object
  • Sealing arrangement are provided, which can be assembled in a simple manner, is extremely robust and is inexpensive to manufacture.
  • Seals channel section the sealing arrangement and at least two ring-shaped and spaced-apart sealing elements and one
  • Spacer element wherein the spacer element is designed as a hollow cylindrical base body which has at least one opening, the at least one opening being used to establish a flow connection between the first channel section and the second channel section, and with a sealing element on the spacer element along the axis of rotation above and below is applied. Due to the advantageous arrangement of the sealing elements and the spacing elements in the intermediate space, a simple and quick installation or exchange of the sealing elements and the spacing elements is possible.
  • sealing elements and spacing elements are present as individual components, a modular design of the sealing arrangement is possible, as a result of which the sealing arrangement can be assembled individually depending on the requirements.
  • each of the sealing elements has a central sealing element base body and at least one curved sealing lip section projecting from the central sealing element base body.
  • each of the sealing elements two curved and in the same direction sealing lip sections to be provided. It is advantageous if each of the
  • Sealing element body has protruding sealing lip sections.
  • the sealing elements are stabilized in the installed state by the two curved, mutually pointing sealing lip sections. Furthermore, such curved sealing lip sections can optimally seal a first passage area connected to the first sealing lip section and for a second passage area connected to the second sealing lip section. Consequently, several can be arranged one above the other
  • each of the sealing elements has a sealing element base body, the sealing element base body being attached with the first side surface in a position-proof and non-slip manner either on the fixed part or on the rotating part and on the second side surface the first and / or second
  • Sealing lip section is arranged.
  • At least one bearing ideally two or more bearings, is provided between the rotating part and the fixed part.
  • these bearings are designed as hybrid bearings, that is to say they have at least one ceramic component, and are installed in such a way that a medium can flow through them individually or together.
  • suitable supply openings are generally to be provided to form a sensible flow path.
  • the sealing element base body is attached with its first side face to the fixed part and the first and / or second sealing lip section lies against the surface of the rotating part facing the fixed part.
  • the sealing element base body is fastened with its first side surface to the rotating part and the first and / or second sealing lip section grazes over a surface of the fixed part facing the rotating part.
  • the sealing element base body has a circumferential, groove-shaped recess on the first side surface for receiving a sealing ring, in particular an O-ring. Due to the additional seal that can be used, the sealing effect from the lead-through area to
  • the cross-sectional area of the sealing element base body is designed to decrease from the first side surface in the direction of the second side surface in order to obtain a bevelled upper and lower side, the upper side and lower side each forming a contact surface for a spacer element.
  • a central element on the sealing element base body is expedient
  • Sealing element guide section provided, at least one
  • Sealing lip section is arranged and serves to stabilize the sealing element in the intermediate space. It is also advantageous that the first and / or second sealing lip section at least in sections on the
  • the at least one sealing lip section of the respective sealing element has an inherent prestress. Furthermore, the at least one sealing lip section of the respective sealing element advantageously includes an insert spring. This insert spring is preferably made of stainless steel or similar materials.
  • the sealing element is made of plastic, in particular PTFE or PCTFE.
  • the sealing element can also consist of a material that can be produced by an injection molding process.
  • the one-piece design of the respective sealing element is also advantageous.
  • At least one opening is made in the spacer element radially to the main cylinder axis.
  • the opening can have any cross-sectional shape, in particular circular, elliptical, polygonal cross-sectional shape. It is also advantageous if the cross-sectional shape and / or the dimension of the opening corresponds to that of the first channel section and / or the second channel section.
  • the bottom surface and the top surface are bevelled from the inner surface in the direction of the outer surface, so that the height of the inner surface is greater than the height of the outer surface and the respective inclination of the bevelled bottom surface and top surface
  • Fig. 2 is an enlarged view of part of the
  • FIG. 3 shows an example of a perspective view
  • FIG. 4 shows a schematic sectional illustration of the spacer element according to FIG. 3,
  • Fig. 5 shows an example of a perspective view of a
  • Fig. 6 is a schematic sectional view of the sealing element according to
  • the reference numeral 1 shows a rotary distributor arrangement for passing at least one medium.
  • a rotary distributor arrangement 1 according to the invention comes, for example, in a not shown
  • Beverage container filling system for use.
  • the rotary distributor arrangement 1 is usually used to transfer or pass liquid and / or gaseous media from the fixed area of the plant to the rotating part of the plant.
  • the media to be passed through the rotary distributor arrangement 1 can be a wide variety of media, in particular liquid and / or gaseous media such as, for example, food, beverages, carbonated gases, cleaning gases, cleaning liquids, CIP liquids, etc.
  • the rotary distributor arrangement 1 initially has a lengthwise direction
  • the rotary distributor arrangement 1 has a fixed part and a part rotating about the axis of rotation RA, in the present exemplary embodiment the
  • Reference number 3 is designated.
  • the arrangement can also be carried out the other way round, so that part 2 is designed as a rotating part and part 3 is designed as a fixed part.
  • the fixed part 3 has a rotationally symmetrical lateral surface pointing or pointing towards the rotating part 2 and the rotating part 2 has a rotationally symmetrical lateral surface facing the fixed part 3.
  • the rotating part 3 is a not shown
  • Rotational movement is usually a shaft 35, preferably a hollow shaft. Since the hollow shaft is thermally decoupled, it is possible to feed cables, lines or the like through the hollow shaft.
  • the reference symbol 32 in FIG. 1 schematically indicates the base frame or base support, which can also be designed as a foot support, with which in the present case
  • a plurality of bearings 28, 29 are provided for the rotatable arrangement of the rotating part 3 relative to the fixed part 2.
  • the bearings 28, 29 are preferably ball bearings, in particular ceramic bearings or hybrid bearings such as Deep groove ball bearings.
  • the hybrid bearing has the advantage that it shows very little wear. In addition, only a low centrifugal force is generated in a hybrid bearing when it rotates quickly, which can increase the bearing's service life.
  • first and second bearings 28, 29 it is possible for a medium, preferably a medium, to pass through them
  • FIG. 1 Another dash-dotted line C shows the inner flow path C of a cleaning fluid, along the shaft 35 and the fixed part 2.
  • bearings 28, 29 are used, which are covered at least on one side by a protective / cover plate 31, the protective / cover plates 31 essentially supporting the bearings 28, 29
  • a head or tensioning ring is additionally provided, which holds the bearing 28 in position.
  • Rotary distributor arrangement 1 has an annular space 6, in which the sealing arrangement 7 according to the invention is arranged and which is enclosed by the opposite lateral surfaces.
  • the fixed part 2 has at least one first channel section 4, which ends at one end in an inlet opening, to which a line for supplying a medium is connected, and ends at the other end in an outlet opening which the medium is fed to the rotating part 3 via a pass-through area 27.
  • the rotating part 3 has at least one second channel section 5, the inlet opening of which can be positioned such that a flow connection can be established between the fixed part 2 and the rotating part 3.
  • the end of the at least second channel section 5 opposite the inlet opening of the rotating part 3 is used here so that the medium to be passed through can be passed on to a rotating filling station, not shown.
  • a sealing arrangement 7 is provided.
  • this comprises at least two ring-shaped and spaced-apart sealing elements 8 and a spacing element 9.
  • the sealing element 8 is shown by way of example in FIGS. 5 and 6 in an enlarged detail view.
  • the sealing element 8 is essentially an annular one
  • the sealing element 8 is made of plastic, in particular PTFE or PCTFE.
  • the sealing element 8 can also be made of related items Materials that can be produced by an injection molding process exist.
  • plastics that are relatively stiff are preferably used.
  • the plastic PTFE or PCTFE has the property of being robust on the one hand and achieving a good sealing effect on the other. Due to the sealing position of the sealing element 8 made of a plastic, it is also possible to form the sealing element 8 in one piece.
  • Each sealing element 8 has a flap axis FIA, around which the respective sealing element 8 extends concentrically, and a flap plane FHE running through the center P of the respective sealing element 8 and intersecting the flap axis FIA in the center P.
  • the basic body of the sealing element is formed by a central sealing element basic body, which is identified in FIG. 6 by reference number 12. This has a first, parallel to the main axis FIA
  • Sealing element base body 12 has a top side 19 and underside 20 which runs essentially parallel to the fluff plane FHE, the cross-sectional area of the sealing element base body 12 being designed to decrease from the first side surface 15 in the direction of the second side surface 16. Accordingly, the top side 19 and bottom side 20 can each have an inclined surface which includes an angle of inclination a with respect to the fluff plane FIE.
  • the angle of inclination a is preferably between 1 degree and 20 degrees, in particular between 5 degrees and 15 degrees.
  • the angle of inclination is particularly preferably 10 degrees.
  • the top 19 and bottom 20 also form a contact surface for one spacer 9 each.
  • a circumferential, groove-shaped recess 17 for receiving a sealing ring, in particular an O-ring, can be provided on the first side surface 15 of the sealing element base body 12, in order to be able to achieve an improved sealing effect with respect to the outer surface of the rotating part 3 in the present exemplary embodiment.
  • the groove-shaped recess 17 is there
  • the sealing element 8 has at least one curved sealing lip section 13, 14 projecting from the central sealing element base body.
  • the at least one sealing lip section 13, 14 extends from the
  • FIGS. 5 and 6 show a preferred embodiment of the sealing element, namely a sealing element 8 with two curved sealing lip sections 13, 14 which face away from one another and project from the basic sealing element body 12. As shown in FIG. 6, a first sealing lip section 13 and a second one are shown
  • Sealing lip section 14 is provided, which over the main plane HE
  • first and / or second sealing lip sections 13, 14 can, for example, have their own prestress.
  • the first and / or second sealing lip section 13, 14 of the respective sealing element 8 can comprise an insert spring.
  • the insert spring is preferably made of a material with elastic or resilient properties such as Stainless steel or similar materials.
  • Sealing element guide section 18 is provided, which is arranged between the first and second sealing lip section 13, 14 and for stabilizing the
  • Sealing element 8 is used in the space 6. Rather, the
  • first and second sealing lip sections 13, 14 can be designed such that they are supported at least in sections on the sealing element guide section 18 can.
  • the sealing element guide section 18 can be designed such that they are supported at least in sections on the sealing element guide section 18 can.
  • Sealing element base body 12 has a central sealing element guide section 18 and one adjoining the central sealing element guide section 18
  • the sealing element 8 is inserted into the intermediate space 6 in such a way that the sealing element base body 12 is attached to the rotating part 3 with its first side surface 15 and the first and second sealing lip sections 13, 14 via a surface of the stationary part facing the rotating part 3 Part 2 grazes.
  • the sealing element is inserted into the intermediate space 6 in such a way that the sealing element base body 12 is attached with its first side surface 15 to the fixed part 2 and the first and second sealing lip sections 13, 14 on the part 2 facing the fixed part Surface of the rotating part 3 is applied.
  • the sealing element base body 12 is also attached with the first side surface 15 in a position and non-slip manner either to the fixed part 2 or to the rotating part 3. So that the sealing elements 8 can be positioned sealingly in shape and position, they are biased axially from both sides.
  • the sealing arrangement has a spacer element 9, which is shown in more detail in FIGS. 3 and 4 and which as
  • hollow cylindrical base body 10 is formed, this one
  • the hollow cylindrical base body 10 has one from the inner
  • Shell surface 23 is chamfered, so that the height h1 of the inner shell surface 22 is greater than the height h2 of the outer shell surface 23.
  • the inclination corresponds to the respective chamfered bottom surface 24 and top surface 25 in
  • a second sealing element 8.2 When assembling the sealing arrangement 7, a second sealing element 8.2, a spacing element 9 and a first sealing element 8.1 are first inserted and positioned one after the other in the intermediate space 6. The spacer 9 is thus between the first sealing element 8.1 and the second sealing element 8.2
  • the top surface 25 of the spacer element 9 lies on the underside 20 of the basic sealing element body 12 of the first sealing element 8.1 and the bottom surface 24 of the spacer element 9 lies on the upper side 19 of the
  • the spacer element 9 has at least one opening 11, the at least one opening 11 being introduced into the spacer element 9 radially to the hollow cylinder main axis ZHA.
  • the cross-sectional shape of the opening 11 is preferably circular. Another cross-sectional shape is also conceivable, for example
  • Cross-sectional shape and / or the dimension of the opening 11 corresponds to that of the first channel section 4 and / or the second channel section 5.
  • the at least one spacer element 9 is attached to the fixed part 2 or the rotating part 3 in a positionally and non-slip manner.
  • the spacer 9 is position and non-slip on the lateral surface of the
  • the spacer element 9 When installing the spacer element 9 in the intermediate space 6, the position of the opening 11 is not specified, ie the flow connection is not necessarily given after the installation. It is possible that the spacer element 9 only establishes a flow connection when the rotating part 3 rotates relative to the fixed part 2 to such an extent that the opening 11 has reached the first channel section 4. In order to be able to establish the best possible flow connection, several spaced-apart openings 11, in particular two to twelve openings, preferably six to ten openings, are made in the spacer element 9.
  • annular chamber 26 which is designed like a channel and is open towards the intermediate space 6 for buffering a medium.
  • the medium to be conveyed thus reaches the passage region 27 via the feed line via the first channel section 4 before the medium collects in the annular chamber 26 and can be passed on to the rotating filling stations, not shown, via at least one second channel section 5.
  • the rotary distributor arrangement has one
  • each spacer element 9 is arranged in each pass-through region 27, four sealing elements 8 having to be used for sealing. Accordingly, each spacer element 9 lies with its respective bottom surface 24 and top surface 25 on the top 19 or bottom 20 of a sealing element 8. The installation of the sealing arrangement 7 takes place in
  • Sealing elements 8 and spacer elements 9 A modular structure is possible through this sealing arrangement 7. Since the sealing arrangement 7 is independent of an installation space, the spacer elements and / or seals can be in their
  • the lateral surface of the rotating part 3 facing the fixed part 2 is ground, at least in sections, preferably completely.
  • the one pointing towards the rotating part 3 is in the present exemplary embodiment
  • Shell surface of the fixed part 2 applied a coating which preferably minimizes the friction between the sealing lip sections 13, 14 and the shell surface.
  • a support device comprising a first insert body 33 and a second insert body 34.
  • the first insert body 33 is designed as a metal ring and is inserted into an annular groove made in the rotating part 3.
  • the metal ring forms a type of holding / support ring and serves to hold or to carry the sealing arrangement 7 located between the fixed part 2 and the rotating part 3.
  • Different types can be used as the metal ring, for example a spring ring or a two-part metal ring, an O-shaped metal ring or the like.
  • the second is between the upper end of the first insert body 33 and the underside 20 of the sealing element base body 12 of the second sealing element 8.2
  • Insert body 34 arranged.
  • the upper surface of the second insert body 34 pointing in the direction of the second sealing element 8.2 is preferably on the contour of the sealing element 8.2. adjusted or the inclination of the surface of the second insert body 34 is opposite to the inclination of the underside 20 of the
  • the second insert body 34 is preferably a metal ring, in particular a spring ring, which spreads against the circumferential surface of the rotating part 3 which faces the fixed part 2.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)

Abstract

L'invention concerne un dispositif distributeur rotatif (1) destiné au passage d'au moins un milieu, comportant : une partie (2) fixe, qui comporte au moins une première section de canal (4) ; une partie (3) tournant autour d'un axe de rotation (RA), qui comporte au moins une deuxième section de canal (5) ; au moins un palier (28, 29), entre la partie (2) fixe et la partie (3) tournante ; un espace intermédiaire (6) annulaire, conçu entre la partie (2) fixe et la partie (3) tournante ; et un agencement d'étanchéité (7), qui est disposé dans l'espace intermédiaire (6) annulaire et qui étanchéifie l'espace intermédiaire (6) annulaire par rapport à la première section de canal (4) et la deuxième section de canal (5), l'agencement d'étanchéité (7) comprenant au moins deux éléments d'étanchéité (8) annulaires espacés l'un de l'autre et un élément d'entretoise (9), l'élément d'entretoise (9) étant conçu sous forme d'un corps de base (10) cylindrique creux, qui comprend au moins une ouverture (11), l'au moins une ouverture (11) servant à établir une connexion d'écoulement entre la première section de canal (4) et la deuxième section de canal (5) et dans l'élément d'entretoise (9), le long de l'axe de rotation (RA), au-dessus et au-dessous, un élément d'étanchéité (8) respectif étant appliqué.
PCT/EP2019/066133 2018-07-12 2019-06-19 Dispositif distributeur rotatif doté d'un agencement d'étanchéité WO2020011502A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018116909.4A DE102018116909A1 (de) 2018-07-12 2018-07-12 Drehverteileranordnung mit einer Dichtanordnung
DE102018116909.4 2018-07-12

Publications (1)

Publication Number Publication Date
WO2020011502A1 true WO2020011502A1 (fr) 2020-01-16

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Application Number Title Priority Date Filing Date
PCT/EP2019/066133 WO2020011502A1 (fr) 2018-07-12 2019-06-19 Dispositif distributeur rotatif doté d'un agencement d'étanchéité

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DE (1) DE102018116909A1 (fr)
WO (1) WO2020011502A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111578076A (zh) * 2020-04-29 2020-08-25 河南科技大学 一种具有柔性调节功能的大型转盘回转装置
CN113113820A (zh) * 2021-04-12 2021-07-13 北京工业职业技术学院 一种气滑环

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2768843A (en) * 1953-06-05 1956-10-30 Thew Shovel Co Multiple passage fluid coupling for power steering of cranes and the like
WO1997000805A1 (fr) * 1995-06-22 1997-01-09 Den Norske Stats Oljeselskap A/S Connecteur rotatif a trajectoire de gaz naturel liquefie integree
DE29620323U1 (de) 1996-11-22 1997-01-23 Krones Ag Hermann Kronseder Maschinenfabrik, 93073 Neutraubling Drehverteiler für rotierende Gefäßfüllmaschinen
JP2012097761A (ja) * 2010-10-29 2012-05-24 Nippon Pillar Packing Co Ltd ロータリジョイント

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1214567B (de) * 1964-11-13 1966-04-14 Enzinger Union Werke Ag Zentraleinlauf fuer Fluessigkeiten und Gase in Fuellmaschinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2768843A (en) * 1953-06-05 1956-10-30 Thew Shovel Co Multiple passage fluid coupling for power steering of cranes and the like
WO1997000805A1 (fr) * 1995-06-22 1997-01-09 Den Norske Stats Oljeselskap A/S Connecteur rotatif a trajectoire de gaz naturel liquefie integree
DE29620323U1 (de) 1996-11-22 1997-01-23 Krones Ag Hermann Kronseder Maschinenfabrik, 93073 Neutraubling Drehverteiler für rotierende Gefäßfüllmaschinen
JP2012097761A (ja) * 2010-10-29 2012-05-24 Nippon Pillar Packing Co Ltd ロータリジョイント

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111578076A (zh) * 2020-04-29 2020-08-25 河南科技大学 一种具有柔性调节功能的大型转盘回转装置
CN111578076B (zh) * 2020-04-29 2021-09-14 河南科技大学 一种具有柔性调节功能的大型转盘回转装置
CN113113820A (zh) * 2021-04-12 2021-07-13 北京工业职业技术学院 一种气滑环
CN113113820B (zh) * 2021-04-12 2022-05-20 北京工业职业技术学院 一种气滑环

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